Results 41 to 50 of about 1,092,027 (335)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

An ATX-LPA6-Gα13-ROCK axis shapes and maintains caudal vein plexus in zebrafish

iScience, 2021
Summary: Lysophosphatidic acid (LPA) is a potential regulator of vascular formation derived from blood. In this study, we utilized zebrafish as a model organism to monitor the blood vessel formation in detail.
Ryohei Okasato, Kuniyuki Kano, Ryoji Kise, Asuka Inoue, Shigetomo Fukuhara, Junken Aoki   +5 more
doaj  

Developmental biology of erythropoiesis

Blood Reviews, 1998
A newborn infant represents the culmination of developmental events from conception through organogenesis. Red cells are critically important for survival and growth of the embryo. During development, erythropoiesis occurs in two distinct forms. The first 'primitive' form consists of nucleated erythroblasts that differentiate within the blood vessels ...
James Palis, George B. Segel
openaire   +3 more sources

Developmental Biology in México

The International Journal of Developmental Biology, 2021
Contemporary scientific endeavor in México emanates from two great public institutions: the Universidad Nacional Autónoma de México (UNAM) and the Instituto Politécnico Nacional (IPN), founded in 1929 and 1936, respectively. Here, the first research institutes and centers dedicated to various scientific areas were created.
openaire   +3 more sources

Developmental Systems Theory as a Process Theory [PDF]

, 2018
Griffiths and Russell D. Gray (1994, 1997, 2001) have argued that the fundamental unit of analysis in developmental systems theory should be a process – the life cycle – and not a set of developmental resources and interactions between those resources ...
Griffiths, Paul Edmund, Stotz, Karola
core  

Partial differential equations for self-organization in cellular and developmental biology [PDF]

, 2008
Understanding the mechanisms governing and regulating the emergence of structure and heterogeneity within cellular systems, such as the developing embryo, represents a multiscale challenge typifying current integrative biology research, namely ...
R E Baker, E A Gaffney, P K Maini, Alberts B, Oster G F, Newman S A, Lin C M Jiang Y J Baker R E Maini P K Widelitz R B Chuong C M, Lengeler J W, Murray J D, Murray J D, Cohen D S, Ockendon J R, Britton N F, Fife P C, Grindrod P, Wolpert L, Meinhardt H, Baker R E, Gomez T M, Fenchel T, Schnell S, Myerscough M R, Cruywagen G C, Jiang T X, Chang C, Erban R Chapman S J Maini P K, Briggs G E, Lander A D, Namba R, Andrews S S, Keener J P, Weinan E, Juhlin S P, Bender C M, Crampin E J, Acheson D J   +35 more
core   +2 more sources

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Developmental biology of wood formation [PDF]

, 2003
The wood-forming vascular cambium is responsible for the production of a large part of the biomass on this planet. Yet, there is only limited knowledge on how cell proliferation and differentiation in the cambial meristem are regulated.
Schrader, Jarmo
core  

An optical coherence microscope for 3-dimensional imaging in developmental biology [PDF]

, 2000
An optical coherence microscope (OCM) has been designed and constructed to acquire 3-dimensional images of highly scattering biological tissue. Volume-rendering software is used to enhance 3-D visualization of the data sets. Lateral resolution of the OCM
Fernandez, Andrew D., Fraser, Scott E., Haskell, Richard C., Hoeling, Barbara M., Huang, Erik, Myers, Whittier R., Petersen, Daniel C., Ungersma, Sharon E., Wang, Ruye, Williams, Mary E.   +9 more
core   +2 more sources

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source